Readability & CEFR Checker (Estimate Any Text’s English Level)
English On Topic · Writing Tool
Readability & CEFR Checker
Paste in any text — a graded reader passage, a news article, your own lesson materials — and I’ll estimate how difficult it is to read, plus a rough CEFR level. It’s built for teachers picking texts for a class and learners wondering if an article is actually within reach.
Also try the Reading Speed Test and the Syllable Counter, or find your own level with the English Level Test.
Estimated CEFR Level
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Words
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Sentences
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Words / Sentence
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Syllables / Word
This is a rough estimate based only on sentence length and syllables per word — the same math behind the Flesch–Kincaid formula. It says nothing about vocabulary difficulty, grammar, or topic familiarity, all of which affect how hard a text actually feels. Published research on this hasn’t found a validated way to convert these scores into an exact CEFR level, especially between B1 and B2, so treat this as a helpful starting point, not an official rating.
More Free Tools
Want to measure yourself instead of a text? Try the Reading Speed Test or the English Level Test. Curious about a single word? The Syllable Counter has you covered.